Fish joint for connecting railroad rails



' other fshplate OSCAR JARVIS, 0F XETCHIIAN, TERRITORY OF ALASKA.

FISH JOINT FOBk CONNECTING RAILROAD RAILS. l

Specification of Letters Patent. i 'Patented Apr. 4, 1922.

pplieation led March 80, 1921.y Serial No. 457,145.

To all whom. it may concern:

Be it known that I, OSCAR Lamis, a citi- Zen of the United States, resident of Ketchikan, Territory of Alaska, have invented new and useful Improvements in a Fish Joint for Connecting' Railroad Rails.

This invention is for the purpose of locking the bolts and keeping them tight at all times, instead of depending on a trackwalker to keep them tight; they can be left for an indefinite time without working loose as this invention locks them and also takes up what play thatmay be caused by wearfand tear.

In the drawing:

Fig. l shows a side View of the rail. with lishplate, washer and bolt in place; also shows the oval hole in the rail which allowsV for contraction and expansion. Fig. 2 shows cross section-of rail with washer down and bolt locked. l

Fig. 3 shows cross section of rail with washer raised so as to release the bolt.

Fig. 4 shows a side andV end viewgof one fish plate, showing square hole to admit square shoulder of a bolt.

Fig. 5 shows side and end view of the with the offset around the bolt hole.

Fig. 6 shows bolt with square shoulder. Fig. 7 shows end and inside yiew of nut with recess.

Fig. 8 yshows front and side Viewv of washer or bearing.

This improved ishjoint comprises one fshplate E with a square hole to receive the square shoulder of a bolt, so vthat thef'bolt itself cannot turn, and another fish-plate F.

The beveled side of the latter fishplate is shown provided with an offset portion A with the nut B which is embraced by the U-shaped lock washer.

The washer orbearing when raised (Fig. 3) allows the nut to be tightened. IVhen the bolt isptight, washer C, drops until D, face of the washer, engages the cut edges of the nut (Fig. 7) which locks thenut and acts as a bearing for the nut. When the bolt is tight` the washer does not go all the way down at G (Fig. 8) so that if there is any play caused by wear the washer will automatically fall in place and takeup such play.

v`While I have shown a particular form 'of embodiment of my invention I am aware that minor changes will readily suggest themselves to others skilled inthe art, without Ldeparting from the spirit and scope of myv invention; I therefore desire to avoid being limited to the exact form shown and described.

Having thus described my invention, what I claim is as follows: l

A fish joint comprising one flat shplate having a square hole, a square shouldered bolt in said hole and a beveled fishplate provided with an offset portion having a round hole therethrough, a nut cutaway at the inner corners, a beveled lock washer adapted `to vstraddlesaid offset and said mit at the cutaway corners to lock the nut. y

In testimony hereof I aix my' signature.

OSCAR J ARVIS. 

